Chemistry Notes Ssc ((hot))

Transition Elements (heavy metals, variable valency). Group 17: Halogens (most reactive non-metals).

). They have high melting points and conduct electricity in molten or aqueous states.

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SSC heavily favors questions regarding commercial names, chemical formulas, and practical uses of everyday substances. Essential Chemical Compounds and Formulas Common Name Chemical Name Chemical Formula Sodium Bicarbonate NaHCO3cap N a cap H cap C cap O sub 3 Cooking, antacids Washing Soda Sodium Carbonate Softening hard water Bleaching Powder Calcium Oxychloride CaOCl2cap C a cap O cap C l sub 2 Disinfecting water Plaster of Paris Calcium Sulfate Hemihydrate Setting fractured bones Gypsum Calcium Sulfate Dihydrate Component of cement Caustic Soda Sodium Hydroxide NaOHcap N a cap O cap H Soap making Laughing Gas Nitrous Oxide N2Ocap N sub 2 cap O Mild anesthetic Dry Ice Solid Carbon Dioxide CO2cap C cap O sub 2 Refrigeration Slaked Lime Calcium Hydroxide Whitewashing walls Quicklime Calcium Oxide CaOcap C a cap O Manufacturing glass Gases and Their Applications

Focus on pH value and natural sources.

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Memory aids can help simplify complex periodic trends or reaction sequences. Handwrite Your Notes: Studies suggest handwriting notes improves long-term recall compared to typing. Science Ready , like the Periodic Table Organic Chemistry Class 12 Chemistry: Solid State Notes | PDF - Scribd

Noble Gases (Inert gases like Helium, Neon, Argon). Trends: Atomic size decreases across a period (left to right). Electronegativity increases across a period. 4. Chemical Bonding and Reactions Ionic Bond: Transfer of electrons (e.g., NaCl). Covalent Bond: Sharing of electrons (e.g., H2Ocap H sub 2 cap O Oxidation vs. Reduction: Oxidation is the loss of electrons/gain of oxygen. Reduction is the gain of electrons/loss of oxygen. Redox Reaction: When both happen simultaneously. 5. Acids, Bases, and Salts This is a high-yield topic for SSC exams. Acids: Sour taste, turn blue litmus red, pH < 7.

: Focus on pH values (e.g., pure water is 7) and common household chemicals. Know your antacids, like Milk of Magnesia (pH 10.5). Chemistry in Everyday Life chemistry notes ssc

Formed by the complete transfer of electrons from a metal to a non-metal (e.g., NaClcap N a cap C l

Atoms with the same atomic number but different mass numbers (e.g., Protium, Deuterium, Tritium).

18 Groups (vertical) and 7 Periods (horizontal). Group 1: Alkali Metals. Group 17: Halogens (most reactive non-metals).

Carbon is versatile due to tetravalency and its unique ability to form long chains (). Allotropes of Carbon Transition Elements (heavy metals, variable valency)

Decreases across a period. Increases down a group.

) primarily caused by used in refrigeration and aerosols. The depletion lets harmful Ultraviolet (UV) rays reach the Earth.

: Study chemicals used in everyday items like fertilizers, polymers, detergents, and food preservatives.

Noble Gases or Inert Gases (stable electronic configuration: Helium, Neon, Argon, Radon). Periodic Trends (Left to Right / Top to Bottom) They have high melting points and conduct electricity

Answer: Bromine ( What is the chemical formula of Plaster of Paris? Answer: Which substance is used to harden rubber? Answer: Sulfur. What is the full form of PVC? Answer: Polyvinyl Chloride. What is the composition of LPG? Answer: Propane and Butane. 4. Tips for Studying Chemistry for SSC